Wonderwall

Watch your language, ladies! The ongoing feud between Brandi Glanville and LeAnn Rimes is definitely alive and kickin', the Real Housewives of Beverly Hills star reassured fans during her book signing on Monday, Jan. 28.

The 40-year-old mother-of-two -- and new author of book Drinking and Tweeting: And Other Brandi Blunders -- let loose a few choice words about Rimes, 30, during a Q&A session at her book signing in West Hollywood after a curious attendee brought up the country singer.

"[She] can go f--k herself," Glanville proclaimed, adding jokingly, "Well, she has to, because who would want to?"

The reality star defended her harsh words, telling the audience that she will stop at nothing to protect her two sons -- Mason, 9, and Jake, 5.

"I go 10 times harder — especially when it comes to my family and my children … [it's like,] 'B---h, it's on!'" she exclaimed. Glanville shares her two children with ex-husband Eddie Cibrian, 39. At the book signing, she contended that she did "everything" right in their marriage, and that she now understands that his affair with Rimes was completely out of her control.

"I loved so hard -- I loved my children and my family was perfect," she said. "I did everything I could do for him and the boys and to make him not want to stray. So, when it happened, especially with someone as attractive as her …" she trailed off purposefully as the crowd chuckled.

"When a man cheats on you it's not about you -- it's about notoriety," she continued. "They want to be with you, but they want [to have] their cake and eat it too."

On Monday night's episode, Glanville's fellow Housewives reassured her that she doesn't always have to be "the tough girl who's always yelling and fighting back" during a dinner in Las Vegas.

"I think it's kind of interesting how it seems one-sided most of the time," she told the talk show host. "But then, you know, you just kinda get fed up with people lying about you and you're like … words, here."

"I usually don't engage [in the feud] but there comes a time when you're just like, 'Screw you,’” she added. "That's it, and that's all you wanna say and you're like, 'I'm done with this now," for like another three months."

Glanville, for her part, admitted that "when I'm wrong, I say sorry" -- but the apologies don't appear to extend to Rimes just yet.